linux-kernel - [PATCH 0/3] kbuild: remove many tool coverage variables

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Date: Mon,  6 May 2024 22:35:41 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>
Subject: [PATCH 0/3] kbuild: remove many tool coverage variables


This patch set removes many instances of the following variables:

  - OBJECT_FILES_NON_STANDARD
  - KASAN_SANITIZE
  - UBSAN_SANITIZE
  - KCSAN_SANITIZE
  - KMSAN_SANITIZE
  - GCOV_PROFILE
  - KCOV_INSTRUMENT

Such tools are intended only for kernel space objects, most of which
are listed in obj-y, lib-y, or obj-m.

The best guess is, objects in $(obj-y), $(lib-y), $(obj-m) can opt in
such tools. Otherwise, not.

This works in most places.



Masahiro Yamada (3):
  kbuild: provide reasonable defaults for tool coverage
  Makefile: remove redundant tool coverage variables
  kbuild: use GCOV_PROFILE and KCSAN_SANITIZE in
    scripts/Makefile.modfinal

 arch/arm/boot/bootp/Makefile           |  1 -
 arch/arm/boot/compressed/Makefile      |  7 -------
 arch/arm/vdso/Makefile                 |  9 ---------
 arch/arm64/kernel/pi/Makefile          |  6 ------
 arch/arm64/kernel/vdso/Makefile        |  8 --------
 arch/arm64/kvm/hyp/nvhe/Makefile       | 13 -------------
 arch/csky/kernel/vdso/Makefile         |  4 ----
 arch/loongarch/vdso/Makefile           |  7 -------
 arch/mips/boot/compressed/Makefile     |  6 ------
 arch/mips/vdso/Makefile                |  7 -------
 arch/parisc/boot/compressed/Makefile   |  4 ----
 arch/powerpc/kernel/vdso/Makefile      |  8 --------
 arch/powerpc/purgatory/Makefile        |  3 ---
 arch/riscv/boot/Makefile               |  2 --
 arch/riscv/kernel/compat_vdso/Makefile |  6 ------
 arch/riscv/kernel/pi/Makefile          |  6 ------
 arch/riscv/kernel/vdso/Makefile        |  6 ------
 arch/riscv/purgatory/Makefile          |  8 --------
 arch/s390/boot/Makefile                |  2 ++
 arch/s390/kernel/vdso32/Makefile       |  8 --------
 arch/s390/kernel/vdso64/Makefile       |  8 --------
 arch/s390/purgatory/Makefile           |  8 --------
 arch/sh/boot/compressed/Makefile       |  3 ---
 arch/sparc/vdso/Makefile               |  2 --
 arch/x86/boot/Makefile                 | 15 ---------------
 arch/x86/boot/compressed/Makefile      | 11 -----------
 arch/x86/entry/vdso/Makefile           | 26 --------------------------
 arch/x86/purgatory/Makefile            |  9 ---------
 arch/x86/realmode/rm/Makefile          | 11 -----------
 arch/x86/um/vdso/Makefile              |  7 -------
 arch/xtensa/boot/lib/Makefile          |  5 -----
 drivers/firmware/efi/libstub/Makefile  | 11 -----------
 drivers/misc/lkdtm/Makefile            |  4 ----
 init/Makefile                          |  3 ---
 scripts/Makefile.build                 |  2 +-
 scripts/Makefile.lib                   | 20 ++++++++++++--------
 scripts/Makefile.modfinal              |  4 +++-
 scripts/Makefile.vmlinux               |  3 ---
 scripts/mod/Makefile                   |  1 -
 39 files changed, 18 insertions(+), 256 deletions(-)

-- 
2.40.1